Friction door holder



May 18,1926. 1,585,247

* N. B.'HURD Y FRI GTION DOOR HOLDER Filed Agust l, 1925 man1/@56m Patented May 18, 1926.

UNITED STATES relatan ra'run'r orricn.

NORMAN B. I'IURD, OF NEW BRITAIN, CONNECTICUT, ASSIGNOR TO THE AMERICAN HARDWARE CORPORATION, OI" NEW' BRITAIN, CONNECTICUT, A CORPORATION OF CONNECTICUT.

FRICTION DOOR HOLDER.

Application filed August 1, 1925.

My invention relates to a door holder.

Door holders are now in use involving a pair of arms, one to be secured to a door casing and the other to be secured to a door or to a door closer thereon, which arms are pivotally connected together and so formed and arranged as to hold a door in open position. W hen suoli a door holder is arranged for a right hand opening door and it is desired to employ the same on an left hand opening door, it is necessary to turn the door holder upside down and often to make other changes in the arrangement of connections, etc.

It is an object of my invention to provide a door holder which may be used on either a right or left hand opening' door and which need not be inverted when changing from a right to a left hand opening door.

It is a further object to provide a generally improved and novel `form of door holder which may be readily adjusted for holding a door in substantially any desired position. Other minor objects will be apparent as the specification proceeds.

Briefly stated, in the preferred form of my invention, l employ a pair of arms, one to be attached to a door casing and the other to be attached to a door or a door closer thereon. rllhe arms are pivotally secured together and a member, which I will term a friction block, is interposed between the pivotally secured arm. ends. Means preferably including right and left hand screw threaded members serve to cause the friction block to engage one or the other of said arms, depending upon whether tie device is used on a right or left hand opening door, and suitable means are provided for non-rotatably securing the friction bloclr to one or the other of said arms.

In said drawings which illustrate merely a preferred form of the invention- Fig. 1 is an isometric view of a door holder applied and illustrating features of the invention;

Fig. 2 is an enlarged fragmentary plan view of a door holder, as shown in Fig. l, the arms being 1 in alignment with each other;

Fig. 3 is a side view in partial section of the partsy shown in Fig. 2.

In said drawings, 5 indicates an arm which may be pivotally secured to a door' Serial No. 47,1140.

casing 6, while 7 indicates a SecondA arm which may be pivotally secured to a door 8 or a door closer 9 secured thereto. rThe arms are pivotally secured together as is usual in door holders of this type. In the preferred form, I provide each arm with a friction face 10 or enga-gement with a oorresponding friction face formed on a inember 11, which I will term a friction block, preferably interposed between the two arms.

A member such as a bolt 12 is preferably nonrotatably held on the arm 5 as by means of a square or other angular face 13 fitting a correspondingly formed bore inthe arm. A nut la' may be threaded on the outer end of the bolt 12 so that the latter may be moved longitudinally and held in the bore in the arm 5. rThe inner end of the bolt 12 isV preferably provided with a left hand thread 15 which engages a correspondingly formed thread in a part ofthe friction block 11. be a substantial duplicate of the bolt 12 and is held in the opposite arm 7. rThe bolt 16, however, is provided with a right hand thread 1.7 engaging a correspondingly threaded portion in the opposite side of the friction block 11. A nut y18 on the outer end of the bolt 16 may serve to position ine bolt 1b longitudinally in the bore of the arm in one direction, as previously described in connection with the bolt 12.

The friction block 11 is designed to be non-rotatably held :to either of thearins alternately so as to cause the bloclr and one arm to rotate together so that when the arms are spread or swung relatively to each other, the friction blockA will ride on either the right or the left hand thread and cause the block to engage the friction face 10 on either one or the [other of said arms. In the forni shown, I provide a bore or seat 19 in one arm and a corresponding bore 20 in the opposite arm. The friction block may have a projecting lug 21 thereon, having a bore therethrough of substantially the same size as the bores 12)*20. A pin 22 is adapted to pass through the bore in the friction bloelr and into the bore 19 or alternately into the bore 20. The three bores 19420, and the corresponding bore in the friction bloclr 11 are so arranged as to be in registry with each other when the three members having these A second bolt 16 may to the necess ry extent. rfhis irrational engagement ofthe block 11 friction and the face 10 on the arm T, will be suliicient to hold a door in the proper position of adjustment.

New, if the device is to be used on a door which swings in ythe opposite direc-tion, it Will not be necessary to invert the device but the holder may remain in the saine upright position, the only change necessary being to move the arms relatively to each other so as to cause the bores 19-20 and .the corresponding bore in the friction block 11 to come into registry With each other and then -force the pin 22 down into the bore 19 so as to cause the friction block 11 to be nonrotatably secured to the arm 7. In the bottom of each bore 155-20, l preferably provide an aperture 23 so as to permit the use of a thin instrument for driving the pin 22 from the bore 2O to the bore 19, and vice versa. NOW When the pin 22 holds the friction block 11 non-rotatably on the arin 'i' and the arms are then again swung relatively to each other but in the opposite direction from that heretofore described, it will be clear that the 'friction block 11 Will be caused to engage the fric-tion face 10 on the arm 5 and thus hold the door in the proper position of adjustment.

TiWhen it is desired to vary the position at which the door is held open, it is only necessary to alter the position of the nut 11i or 18, depending upon Whether the device is employed on aleft or right hand opening door, so as to cause the space between the friction block and the corresponding arm to be greater or less. When this space is relatively small, the door will be held only slightly open. On the other hand, when this space between the friction block and arm is relatively greater, the door may be held open to a greater extent.

It Will therefore be seen that With a door holder of .the character described, it is not necessary to make any substantial alterations nor to invert the entire door holder when the same is to be used on either a right or lett hand opening door. The change or alteration necessary involves only the sliding of a pin or the like from one arm into the other. The door holder may be readily and quickly Leens@ adjusted for holding the door in substantially any predetermined position of adjustment.

vWhile the invention has been desc 1ibed in some detail, do not ivish to be strictly liniited to the forni shown since changes may be made within the scope of the invention as defined in the appended claims.

i claim- 1. In a door holder, a pair pivotally connected arms, one to be attached to a door casing and the other to be attached to a door, a friction bloei; interposed between said arms, nic-ans for non-rotatably securing said friction block to oneI arm ivhen trie door holder to be used on a right hand opening door, and for attaching said friction block to the oppfeite arm When the door holder is to be used on a left hand opening door, and means for causing said friction block to ictionaliy engage one of said arms, all of aid parts being non-yielding.

ln a door holder, a pair of pivotally mounted arms, a friction blocl; for engaging one of said arms, and means for causing said block and arm to frictionally engage each other -when said arins are swung relatively to cach other for holding a door in predetermined position, all of said parts being non-yielding.

in the combination defined in claim 2, and means for varying the position at which the door is held.

d. ln a door holder, a pair of arms, a friction blocll; between said arms adapted to frictionally engage one of said arms, means for securing said friction block non-rotatably to one of said arms, and screw threaded means for causing said friction block to frictionally engage one of said arms when the arins are swung relatively to each other, all of said parts being non-yielding.

i. A door holder, a pair of arms, a friction block interposed between said arms, screw threaded means for causing said block t0 nGve relatively to said arms, and a pin for securing said block against rotation on one of said arms, all of said parts being nonyielding.

6. in a door holder, a pair of arms, a friction block interposed between said arms, screw threaded means for pivotally securing said arms together and causing said block to more relatively to said arms to frictionally engage one or the other of the same alternately when the arms are swung relatively to each other, and means for securing said block non-rotatably to one of said arms, all of said parts being non-yielding.

7. ln the combination defined in claim 6, and means for varying the position at Which the friction block engages said arms.

8. A door holder, a pair of arms, a friction block interposed between said arms, a member having a right hand thread engaging in a correspondingly formed thread in said block, said member being non-rotatably secured to one of said arms, a second member having a left hand thread non-rotatably secured to the other of said arms and engaging a correspondingly threaded portion in said block and means for non-rotatably securing said block to said arms alternately, whereby when said block is secured to one of said arms and the arms swung relatively to each other, the friction block will contact with one arm and when said friction block is secured to said other arm, said friction block will frictionally engage the opposite arm whereby said door holder may be used for holding` either a left or right hand opening door, all of said parts being non-yielding.

9. In a door holder, a pair of arms, a friction block interposed between said arms, a member non-rotatably secured to one arm and having a right handed thread screwed into said friction block, a second member non-rotatably arranged in the otherarm and having a left handed thread screwed into said friction block, said arms and block having pin seats registering with each other when said arms and block are in one position, and a pin engaging in the seat of said friction block and adapted to engage the seats in said arms alternately whereby when said pin secures said block to one arm nonrotatably, said friction block and one arm will frictionally engage each other to hold the arms in one position and when said pin secures said friction block to the other arm, said friction block will be caused to engage one of the arms for securing said arms in a different relative position.

NORMAN B. H URD. 

